CN213050143U - Diluting device for dissolving out ore pulp in alumina production - Google Patents
Diluting device for dissolving out ore pulp in alumina production Download PDFInfo
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- CN213050143U CN213050143U CN202021578063.2U CN202021578063U CN213050143U CN 213050143 U CN213050143 U CN 213050143U CN 202021578063 U CN202021578063 U CN 202021578063U CN 213050143 U CN213050143 U CN 213050143U
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Abstract
The utility model discloses a diluting device of ore pulp is dissolved out in alumina production, including dilution tank and a wash liquor pipe, the top of dilution tank sets up the ore pulp import, and a wash liquor pipe just sets up the inner wall department near the dilution tank in extending to the dilution tank from dilution tank roof is vertical, and a wash liquor pipe passes through the fixed plate to be connected on the inner wall of dilution tank, and the bottom of a wash liquor pipe extends to dilution tank bottom and buckles into the level form, and a wash liquor pipe has the venturi nozzle at this end connection. The utility model discloses enable a lotion and dissolve out the ore pulp and carry out abundant dilution and homogeneous mixing, reduce the deposit of red mud material in the dilution tank jar, reduce the work load of dilution tank jar clearance, reduce the production maintenance cost.
Description
Technical Field
The utility model relates to the technical field of alumina production equipment, in particular to a diluting device for dissolving out ore pulp in alumina production.
Background
In the production process of alumina, bauxite is crushed, wet-milled and high-pressure dissolved to obtain dissolved ore pulp, the dissolved ore pulp is subjected to flash evaporation, temperature reduction and pressure reduction to obtain dissolved ore pulp with the Al2O3 of 380g/L, Na2O of 320g/L and the solid content of 280g/L, and the high-concentration material needs to be diluted by primary washing liquid (Al 2O3 of 40g/L, Nk of 35 g/L) in a dilution tank to reduce the material concentration, and then is sent to a red mud separation and washing procedure to be separated to extract sodium aluminate solution. The technological process generally adopted in the industry at present mainly comprises the steps that a primary washing liquid from a red mud separation and washing process is directly connected to the top of a dilution tank and welded to an opening in the top of the dilution tank, the primary washing liquid is pumped into the dilution tank from a tank top pipe port after reaching the dilution tank, the primary washing liquid and dissolved ore pulp cannot be fully mixed in the dilution tank without stirring, the primary washing liquid and the dissolved ore pulp are immediately pumped into a dilution rear tank by a dilution pump, so that the dissolved ore pulp cannot be fully diluted and reacted, indexes of the diluted ore pulp are greatly fluctuated, meanwhile, the dissolved ore pulp as a high-solid material cannot be fully mixed and diluted, red mud is easily deposited in the dilution tank, the material deposition can cause the impeller of the dilution pump to block production materials to be interrupted. Meanwhile, in order to eliminate hidden troubles, a manhole is required to be opened to clean deposited red mud in each shutdown maintenance period of the dilution tank, the cleaning and maintenance cost is high, and the production and operation cost is increased.
Disclosure of Invention
To the technical problem that appears at present, the utility model provides a diluting device of ore pulp is dissolved out in alumina production enables a lotion and dissolves out the ore pulp and fully dilutes and the homogeneous mixing, reduces the deposit of red mud material in the dilution tank jar, reduces the work load that the dilution tank jar was cleared up, reduces the production maintenance cost.
The utility model adopts the technical proposal that: the utility model provides a diluting device of ore pulp is dissolved out in alumina production, including dilution tank and a liquid-washing pipe, the top of dilution tank sets up the ore pulp import, and a liquid-washing pipe is from the vertical extension of dilution tank top to the dilution tank in and set up in the inner wall department that is close to the dilution tank, and a liquid-washing pipe passes through the fixed plate to be connected on the inner wall of dilution tank, and the bottom of a liquid-washing pipe extends to dilution tank bottom and buckles into the level form, and a liquid-washing pipe has the venturi nozzle at this end connection.
As the optimization of this technical scheme, venturi nozzle 700mm apart from diluting groove jar axis.
As the optimization of the technical scheme, the distance between the primary liquid washing pipe and the inner wall of the dilution tank is 500 mm.
After the structure above the adoption, the utility model discloses diluting device that dissolves out the ore pulp in the alumina production passes through venturi nozzle blowout with lotion once, and the venturi nozzle forms the export negative pressure, will dissolve out the ore pulp again and inhale the venturi nozzle, forms the efflux blowout after mixing with lotion once to reach the purpose of two kinds of material intensive mixings under the no stirring state, compare with prior art, the utility model discloses enable the material intensive mixing, make sodium aluminate solution obtain abundant chemical dilution and desiliconization reaction, more be favorable to subsequent red mud separation and seed crystal to decompose, improved semen silicon volume index, gained good productivity effect. Meanwhile, the materials are fully mixed, so that the deposition of the red mud materials in the diluting tank is reduced to the maximum extent, and the tank is reducedThe tank cleaning workload is reduced, and the production and maintenance cost is reduced. Through using the utility model discloses, wash liquor flow steady operation state down > 650m dry year, be enough to satisfy the production demand, dilute ore pulp index Al2O3 and be 190 +/-5 g/L, Na2O165 +/-2 g/L steady operation, avoided production core technological index's fluctuation by a wide margin, dilution tank clearance cycle is prolonged to 135 days by 45 days, aluminium oxide product SiO 22Less than 0.005 percent and is greatly superior to first-grade alumina SiO2The national standard is less than 0.02 percent, and the production and operation benefits of enterprises are improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, 1, a dilution tank, 2, an ore pulp inlet, 3, a primary liquid washing pipe, 4, a fixing plate, 5 and a Venturi nozzle.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in figure 1, the utility model relates to a diluting device of dissolving out ore pulp in alumina production, including dilution tank 1 and liquid washing pipe 3 once, the top of dilution tank 1 sets up ore pulp import 2, and the vertical setting of liquid washing pipe 3 once is close to inner wall department in dilution tank 1 inside, and connects on the inner wall of diluting tank 1 through fixed plate 4, and outside the top of liquid washing pipe 3 extended diluting tank 1, the bottom extended to diluting tank 1 bottom and buckled into the level form, and liquid washing pipe 3 has venturi nozzle 5 at this end connection.
The utility model discloses when concrete implementation, fixed plate 4 sets up a plurality ofly, sets up from top to bottom in proper order, and 4 one ends of fixed plate are connected on 1 inner wall of diluting tank, and the other end is connected with a wash liquor pipe 3, and a wash liquor pipe 3 is apart from diluting tank 1 inner wall 500 mm. The venturi nozzle 5 is located in the right part of the diluting tank 1 in fig. 1, and the venturi nozzle 5 is 700mm away from the central axis of the diluting tank 1.
The utility model discloses enable a lotion and dissolve out the ore pulp and carry out abundant dilution and homogeneous mixing, reduce the deposit of red mud material in the dilution tank jar, reduce the work load of dilution tank jar clearance, reduce the production maintenance cost.
The technical solutions in the embodiments of the present invention have been clearly and completely described above, and it should be understood that the described embodiments are only some embodiments of the present invention, but not all embodiments, and the present invention should not be construed as being limited thereto.
Claims (3)
1. The utility model provides a diluting device of dissolving out ore pulp in alumina production which characterized in that: including dilution tank and liquid wash pipe once, the top of dilution tank sets up the ore pulp import, and liquid wash pipe is vertical to extend to in the dilution tank and set up in the inner wall department that is close to the dilution tank from dilution tank top once, and liquid wash pipe is connected on the inner wall of dilution tank through the fixed plate once, and the bottom of liquid wash pipe extends to dilution tank bottom and buckles into the level form once, and liquid wash pipe has the venturi nozzle at this end connection.
2. The dilution apparatus for dissolving pulp in alumina production according to claim 1, wherein: the venturi nozzle is 700mm away from the central axis of the diluting tank.
3. The dilution apparatus for dissolving pulp in alumina production according to claim 1, wherein: the distance between the primary liquid washing pipe and the inner wall of the dilution tank is 500 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021578063.2U CN213050143U (en) | 2020-08-03 | 2020-08-03 | Diluting device for dissolving out ore pulp in alumina production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021578063.2U CN213050143U (en) | 2020-08-03 | 2020-08-03 | Diluting device for dissolving out ore pulp in alumina production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213050143U true CN213050143U (en) | 2021-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021578063.2U Active CN213050143U (en) | 2020-08-03 | 2020-08-03 | Diluting device for dissolving out ore pulp in alumina production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213050143U (en) |
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2020
- 2020-08-03 CN CN202021578063.2U patent/CN213050143U/en active Active
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